GitHub Advisory DatabaseGHSA-XC3P-FF3M-F46VFlask-Cors Directory Traversal vulnerability
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.01 Low
EPSS
Percentile
83.6%
An issue was discovered in Flask-CORS (aka CORS Middleware for Flask) before 3.0.9. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| flask-cors | lt | 3.0.9 |
References
lists.opensuse.org/opensuse-security-announce/2020-09/msg00028.html
lists.opensuse.org/opensuse-security-announce/2020-09/msg00032.html
lists.opensuse.org/opensuse-security-announce/2020-09/msg00039.html
lists.opensuse.org/opensuse-security-announce/2020-09/msg00048.html
github.com/advisories/GHSA-xc3p-ff3m-f46v
github.com/corydolphin/flask-cors/commit/67c4b2cc98ae87cf1fa7df4f97fd81b40c79b895
github.com/corydolphin/flask-cors/releases/tag/3.0.9
nvd.nist.gov/vuln/detail/CVE-2020-25032
www.debian.org/security/2020/dsa-4775
Related
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.01 Low
EPSS
Percentile
83.6%